Broken wire detection device with stopper
By incorporating a stop and an energy absorber into the wire breakage detection device of a diamond wire cutting machine, the problem of counterweight overturning interference caused by fishing line breakage is solved, enabling timely machine shutdown and equipment protection, thus avoiding equipment damage and economic losses.
Patent Information
- Application Number
- CN202423131482.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing wire breakage detection devices are prone to causing the counterweight to flip and interfere with the diamond wire when the fishing line breaks on the diamond wire cutting machine, resulting in equipment damage and economic losses. Furthermore, existing devices are difficult to stop in time.
A wire breakage detection device with a stop is designed. By setting a stop and an energy-absorbing component on the rotation path of the counterweight, the stop prevents the counterweight from contacting the diamond wire, and the energy-absorbing component absorbs the kinetic energy of the counterweight to avoid large rebound, thus forming a structure that protects the diamond wire.
It effectively prevents the counterweight from contacting the diamond wire, limits the rotation range of the counterweight, avoids equipment damage, enables timely shutdown, protects the diamond wire, and prevents economic losses.
Smart Images
Figure CN223572157U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wire cutting technology, and specifically relates to a wire breakage detection device with a stop. Background Technology
[0002] The wire breakage detection device is a timely shutdown and alarm control system that detects wire breakage in diamond wire cutting machines. Diamond wire cutting machines are medium to large-scale processing equipment for cutting precious metal bars. They work by winding a cutting wire at equal intervals around paired spindles. The high-speed forward and reverse rotation of the spindles drives the cutting wire in a high-speed reciprocating motion, thus cutting the bar. Each machine has 2000 to 4000 turns or more. If a wire breakage occurs, the machine must be stopped immediately; otherwise, the slices and bars will be scrapped, and in severe cases, the equipment may be damaged, resulting in significant economic losses.
[0003] To stop the machine in time, a fishing line is usually used to pull the counterweight as a triggering device. A break in the fishing line will cause the counterweight to flip, but the edge diamond wire is in the flipping path of the counterweight and is easily interfered with, causing the wire to break. Utility Model Content
[0004] This utility model addresses the problems of the prior art by providing a wire breakage detection device with a stop, the specific technical solution of which is as follows:
[0005] A wire breakage detection device with a stop includes two symmetrically arranged support members, a main shaft rotatably arranged between the two support members, a diamond wire wound on the main shaft, a counterweight rotatably arranged on one of the support members, and a stop member arranged on the rotation path of the counterweight toward the diamond wire.
[0006] The stop has a notch on the end face facing the counterweight that allows the counterweight to be screwed in. The width of the notch gradually decreases along the screwing path. Energy-absorbing elements are provided on both side walls of the notch, and the energy-absorbing elements are deformable.
[0007] As a further technical solution of this utility model, there is a maximum distance between the two energy-absorbing components, and the maximum distance value is greater than the thickness of the counterweight.
[0008] As a further technical solution of this utility model, the notch has a minimum width, and the minimum width value is less than the thickness of the counterweight.
[0009] As a further technical solution of this utility model, the energy-absorbing component is made of polyurethane.
[0010] As a further technical solution of this utility model, the support member includes a bracket, an extension rod and a protrusion. The extension rod is mounted on the bracket, and the protrusion is mounted on the upper surface of the other end of the extension rod. The counterweight and the stop are arranged on the same bracket.
[0011] As a further technical solution of this utility model, it also includes a trigger line, one end of which is connected to the end of the counterweight, and the other end is connected to the other protrusion after passing around one of the protrusions.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this application, by setting a stop on the rotation path of the counterweight toward the diamond wire, it is possible to block the contact between the counterweight and the diamond wire, limit the rotation range of the counterweight, and form protection for the diamond wire.
[0014] Furthermore, through the combined design of the notch and the energy-absorbing component, it can absorb part of the kinetic energy of the counterweight and engage it in the notch, thus preventing the counterweight from rebounding significantly. Attached Figure Description
[0015] Figure 1 A schematic diagram of the overall structure of a wire breakage detection device with a stop is shown;
[0016] Figure 2 A schematic diagram of the stop is shown.
[0017] Legend:
[0018] 110. Bracket; 120. Extension rod; 130. Protrusion; 140. Trigger wire; 150. Spindle; 160. Diamond wire; 170. Counterweight; 180. Stop; 181. Notch; 182. Energy-absorbing component. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0020] Figure 1 A schematic diagram of the overall structure of a wire breakage detection device with a stop is shown; Figure 1The broken line detection device with a stop includes two symmetrically arranged support members. Each support member includes a bracket 110, an extension rod 120, and a protrusion 130. The extension rod 120 is mounted on the bracket 110, and the protrusion 130 is mounted on the upper surface of the other end of the extension rod 120. A trigger wire 140 is wound between the two protrusions 130, and a main shaft 150 is rotatably arranged between the two support members. A diamond wire 160 is wound on the main shaft 150. A counterweight 170 is rotatably connected to one of the brackets 110, and a stop 180 is arranged on the rotation path of the counterweight 170 toward the diamond wire 160. The bracket 110 is welded from 304 stainless steel, which is strong and not easily corroded. The counterweight 170 is also made of 304 stainless steel and can be flipped. The diamond wire is the main auxiliary material used for cutting, with a diameter of about 0.03 mm. After the line breaks, it can cut the fishing line, causing the counterweight to move and trigger the device to stop. The fishing line has a diameter of about 0.1 mm and is made of nylon.
[0021] In operation, one end of the trigger wire 140 is wrapped around the outer edge of the counterweight 170, that is, the side away from the center of rotation, and a pulling force is generated on the counterweight 170. The other end of the trigger wire 140 passes around one of the protrusions 130 and is straightened and connected to another protrusion 130 near the lower side of the main shaft 150, forming a triggering device. In this triggering device, the counterweight 170 is pulled by the taut trigger wire 140 to overcome gravity. When the trigger wire 140 breaks, the pulling force of the counterweight 170 disappears, and it rotates due to gravity interference.
[0022] Figure 2 A schematic diagram of the structure of the stop 180 is shown; Figure 2 In this configuration, the stop 180 is mounted on the bracket 110 and on the same side as the counterweight 170. The stop 180 is installed on the rotation path of the counterweight 170 toward the diamond wire 160. Here, "installation" refers to detachable installation. For example, a screw hole can be made on the bracket 110, and the mating end of the stop 180 toward the bracket 110 can be threaded to be directly screwed into the screw hole, thus connecting the bracket 110 and the stop 180. Alternatively, bolts or snap-fit connections can be used. By positioning the stop 180 on the rotation path of the counterweight 170 toward the diamond wire 160, the contact between the counterweight 170 and the diamond wire 160 can be blocked, limiting the rotation range of the counterweight 170 and thus protecting the diamond wire 160.
[0023] See also Figure 2The stop 180 has a notch 181 on its end face facing the counterweight 170, allowing the counterweight 170 to screw in. The width of the notch 181 gradually decreases along the screwing path; that is, as the counterweight 170 screws into the notch 181, it is pressed against the two side walls of the notch 181, forming a meshing action. Energy-absorbing elements 182 are provided on both side walls of the notch 181, and these elements are deformable. The energy-absorbing elements 182 deform and absorb energy upon impact from the counterweight 170, thus offsetting some of the kinetic energy of the counterweight 170. There is a maximum distance between the two energy-absorbing elements 182. The value is greater than the thickness of the counterweight 170; this is because the arrangement of the two energy-absorbing elements 182 will further reduce the entrance of the notch 181. In order to facilitate the screwing in of the counterweight 170, the maximum distance between the two energy-absorbing elements 182, that is, the distance at the entrance of the notch 181, is greater than the thickness of the counterweight 170, so that the counterweight 170 is easier to screw in; the notch 181 has a minimum width, and the minimum width value is less than the thickness of the counterweight 170; by using the minimum width of the notch 181 to be less than the thickness of the counterweight 170, the collision between the counterweight 170 and the bottom wall of the notch 181 is avoided, ensuring that the two side walls of the notch 181 can form an engagement with the counterweight 170.
[0024] The energy-absorbing component 182 is made of polyurethane. Polyurethane exhibits viscoelastic behavior, meaning it has the properties of both elastic solids and viscous liquids. When the material is impacted, it generates internal friction or internal wear. This internal wear can effectively convert mechanical energy into heat energy, thus playing the role of energy absorption. Furthermore, polyurethane has memory properties and will not quickly feed back the rebound force to the counterweight 170. Instead, it recovers slowly, causing the counterweight 170 to be contained within the notch 181, thus preventing rebound.
[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A wire breakage detection device with a stop, comprising two symmetrically arranged support members, a main shaft (150) rotatably arranged between the two support members, a diamond wire (160) wound on the main shaft (150), and a counterweight (170) rotatably arranged on one of the support members, characterized in that, It also includes a stop (180) arranged on the rotation path of the counterweight (170) toward the diamond wire (160); The stop (180) has a notch (181) on its end face facing the counterweight (170) to allow the counterweight (170) to be screwed in. Along the screwing-in path, the width of the notch (181) gradually decreases. Energy-absorbing elements (182) are provided on both side walls of the notch (181), and the energy-absorbing elements (182) are deformable.
2. The wire breakage detection device with a stop as described in claim 1, characterized in that: There is a maximum distance between the two energy-absorbing elements (182), and the maximum distance value is greater than the thickness of the counterweight (170).
3. The wire breakage detection device with a stop according to claim 2, characterized in that: The notch (181) has a minimum width, and the minimum width value is less than the thickness of the counterweight (170).
4. The wire breakage detection device with a stop according to claim 3, characterized in that: The energy-absorbing component (182) is made of polyurethane.
5. The wire breakage detection device with a stop according to claim 3, characterized in that: The support includes a bracket (110), an extension rod (120), and a protrusion (130). The extension rod (120) is mounted on the bracket (110), and the protrusion (130) is mounted on the upper surface of the other end of the extension rod (120). The counterweight (170) and the stop (180) are arranged on the same bracket (110).
6. The wire breakage detection device with a stop according to claim 3, characterized in that: It also includes a trigger line (140), one end of which is connected to the end of the counterweight (170), and the other end is connected to the other protrusion (130) after passing over one of the protrusions (130).